CN214231080U - Air duct assembly and food processor - Google Patents

Abstract

The utility model provides a wind channel subassembly and cooking machine, wherein, the wind channel subassembly includes: an air duct; at least part of the radiating piece is positioned in the air duct, and the part of the radiating piece positioned in the air duct comprises a windward end; and the noise reduction device is positioned in the air duct and is arranged at the windward end of the heat dissipation part. The utility model provides a wind channel subassembly includes wind channel, radiating piece and falls the device of making an uproar. Because the air current that gets into the wind channel at first with fall the device contact of making an uproar, can produce destructive interference to the air current scattering on the radiating piece windward end through falling the device of making an uproar, produced noise when reducing the air current and the contact of radiating piece, so reduce the air current at the aerodynamic noise of radiating piece department, and then can reduce the running noise that uses the electrical apparatus of installing the wind channel subassembly, be favorable to promoting the performance and the market competition of product.

Description

Air duct assembly and food processor

Technical Field

The utility model relates to a life electrical apparatus technical field particularly, relates to an air duct subassembly and cooking machine.

Background

In the related art, when the airflow in the air duct flows through the heat dissipation member, the airflow takes away heat at the heat dissipation member to dissipate the heat of the heat dissipation member. Meanwhile, because the air flow contacts with the heat dissipation part, the air flow impacts the heat dissipation part to generate noise, so that the operation noise of the electrical appliance provided with the air channel is greatly increased, and the user experience is influenced.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

To this end, the utility model discloses a first aspect provides an air duct assembly.

The second aspect of the utility model provides a cooking machine.

In view of this, the utility model discloses the first aspect provides an air duct assembly, include: an air duct; at least part of the radiating piece is positioned in the air duct, and the part of the radiating piece positioned in the air duct comprises a windward end; and the noise reduction device is positioned in the air duct and is arranged at the windward end of the heat dissipation part.

The utility model provides a wind channel subassembly includes wind channel, radiating piece and falls the device of making an uproar. The part of the radiating piece, which is positioned in the air duct, comprises a windward end, and the noise reduction device is arranged at the windward end of the radiating piece through reasonably arranging the windward end of the radiating piece and a matching structure of the noise reduction device. Therefore, when the air flow in the air duct flows to the radiating piece, the air flow firstly contacts with the noise reduction device positioned at the windward end of the radiating piece and then flows to the radiating piece. Because the air current that gets into the wind channel at first with fall the device contact of making an uproar, can produce destructive interference to the air current scattering on the radiating piece windward end through falling the device of making an uproar, produced noise when reducing the air current and the contact of radiating piece, so reduce the air current at the aerodynamic noise of radiating piece department, and then can reduce the running noise that uses the electrical apparatus of installing the wind channel subassembly, be favorable to promoting the performance and the market competition of product. That is to say, this setting makes the air current take away the heat on the radiating piece to when realizing the heat dissipation, greatly reduced the air current and the heat sink contact the noise that produces.

It will be appreciated that the noise reducing device is located at the windward end of the heat sink, i.e. the noise reducing device is connected to the windward end of the heat sink, so that the heat sink and the noise reducing device can be seen as a whole. That is, the arrangement makes aerodynamic noise of the air flow passing through the noise reduction device and the heat radiating member small while ensuring the performance of the heat radiating member in use.

Specifically, one end of the noise reduction device facing the windward end of the heat dissipation member is attached to the windward end of the heat dissipation member, so that a gap between the noise reduction device and the windward end of the heat dissipation member is reduced.

Specifically, when the air duct assembly is used in cooperation with other devices of an electric appliance, the heat dissipation member can be attached to the device to be dissipated, and the wall surface of the air duct which can be used is located between the heat dissipation member and the device to be dissipated, namely, the heat dissipation member is indirectly matched with the device to be dissipated, and the heat dissipation member is used for dissipating heat of the device to be dissipated. Therefore, the air flow in the air duct is in contact with the heat dissipation part to take away the heat on the heat dissipation part, and the heat can be dissipated for the heat dissipation part to be dissipated.

If, at cooking machine operation in-process, cooking machine produces heat and gives the radiating piece, through the heat radiating area of radiating piece increase cooking machine for the heat runs off through the radiating piece.

Additionally, the utility model provides an air duct assembly in the above-mentioned embodiment can also have following additional technical characteristics:

in the above embodiment, further, the noise reduction device covers the windward end of the heat sink.

In this embodiment, a position of the noise reduction device is further provided, the noise reduction device covers the windward end of the heat dissipation member, the arrangement increases a contact area between the noise reduction device and the windward end of the heat dissipation member, and when the airflow is conveyed to the heat dissipation member through the air duct, the airflow first contacts with the noise reduction device, but does not directly contact with the windward end. Thus, noise generated by the contact of the airflow with the heat sink can be greatly reduced.

In any of the above embodiments, further, the noise reduction device includes: a frame body; the frame body is located to a plurality of the piece of making an uproar that fall, and a plurality of the piece interval arrangements of making an uproar that fall form between the piece of making an uproar that fall arbitrary two, fall the passageway of making an uproar and be linked together with the radiating piece.

In this embodiment, a specific structure of the noise reduction device is further provided, and the noise reduction device includes a frame or a plurality of noise reduction members, and the plurality of noise reduction members are spaced apart from each other so that a noise reduction channel is formed between two adjacent noise reduction members. The noise reduction channel is communicated with the radiating piece, so that the smoothness of the airflow flow path can be ensured, the airflow can be ensured to be effectively contacted with the radiating piece, and the radiating effect of the radiating piece is ensured.

In addition, the noise reduction piece can scatter airflow at the windward end of the radiating piece to generate destructive interference, noise generated when the airflow is in contact with the radiating piece is reduced, and aerodynamic noise of the airflow at the radiating piece is reduced. That is, the noise is reduced while the effectiveness of the airflow and the heat dissipation effect are ensured.

In any of the above embodiments, further, the heat sink includes: a plurality of fins arranged at intervals; wherein, the distribution direction of a plurality of fins is the same with the distribution direction of a plurality of noise reduction pieces.

In this embodiment, further provided the structure of radiating piece, radiating piece has included a plurality of fins, a plurality of fin interval distribution for the air current falls the back of making an uproar through the device of making an uproar of falling, contacts with the fin, and then the air current can be through the clearance discharge radiating piece between a plurality of fins, and the circulation of the air current of being convenient for can improve the radiating efficiency.

In the embodiment, the distribution direction of the plurality of fins is the same as that of the plurality of noise reduction pieces, so that the smoothness and stability of an airflow flow path can be ensured, the wind resistance can be reduced, the deflection of the airflow is reduced, the flow loss of the airflow is reduced, more energy is converted into dynamic pressure, and the air volume is further improved; furthermore, the arrangement can reduce the frequency of phenomena of airflow flow separation, vortex and the like, and is beneficial to reducing aerodynamic noise.

In particular, the fins may be made of aluminum.

In any of the above embodiments, further, a spoiler is disposed at an end of the noise reduction element away from the heat sink; the spoiler comprises any one or combination of the following components: corrugated structure, sawtooth structure, square tooth structure, protruding structure, groove structure.

In this embodiment, the one end that makes an uproar piece falls and deviates from the radiating piece is equipped with the vortex portion for the air current that carries via the wind channel is preferred to be contacted with the vortex portion, can produce destructive interference to the scattering pressure on the radiating piece windward end, and then the noise reduction.

In this embodiment, a structure of the spoiler is further provided, the spoiler includes one or a combination of a corrugated structure, a sawtooth structure, a square tooth structure, a raised structure, and a groove structure, and the corrugated structure, the sawtooth structure, the square tooth structure, the raised structure, and the groove structure can all play a destructive interference effect on the scattering pressure at the windward end of the heat sink, and can play a noise reduction role.

In addition, this arrangement can effectively disturb the incoming airflow. When the turbulence parts with the same structure are selected for turbulence, the processing difficulty of the turbulence parts can be reduced, and the processing cost of products is reduced. When the turbulence parts with different structures are selected for use to combine turbulence, the turbulence effect can be further improved so as to meet the higher noise reduction requirement, and a user can flexibly set the specific structure of the turbulence part according to the use scene of a product.

Specifically, one end of the noise reduction element facing the heat dissipation element is matched with the structure of the windward end of the heat dissipation element. If the windward end of the heat dissipation piece is a plane, one end of the noise reduction piece facing the heat dissipation piece is also the plane; the windward end of the heat dissipation member is a curved surface, and the end of the noise reduction member facing the heat dissipation member is also a curved surface.

In any of the above embodiments, further, the wall surface of the air duct is provided with a limiting portion, the noise reduction device is provided with a limiting matching portion, and the limiting portion is connected with the limiting matching portion in a matching manner, so that the noise reduction device is assembled with the air duct.

In this embodiment, further set up spacing portion on the wall in wind channel, set up spacing cooperation portion on the device of making an uproar falls, and the installation and the fixing of the device of making an uproar falls of being convenient for through spacing portion and the combination use of spacing cooperation portion, can prevent to fall the device of making an uproar and take place to rock, and then avoids producing the noise because of falling the device of making an uproar and taking place to rock.

Particularly, the limiting part is matched with the limiting matching part, so that the noise reduction device and the air channel can be conveniently mounted and dismounted, and the assembly efficiency is favorably improved. That is to say, spacing portion is connected with spacing cooperation portion cooperation to realize the connection of wind channel and noise reduction device.

Specifically, the air duct, the noise reduction device and the heat dissipation member are assembled together.

In any of the above embodiments, further, the air duct includes: at least part of the heat dissipation part is positioned in the first sub-air duct, and the first sub-air duct forms part of the limiting part; the second sub-air duct is connected with the first sub-air duct, and the second sub-air duct forms the other part of the limiting part; wherein, spacing cooperation portion presss from both sides and establishes between first sub-wind channel and the second sub-wind channel.

In this embodiment, a specific structure of the air duct is further provided, the air duct includes a first sub-air duct and a second sub-air duct, and the first sub-air duct and the second sub-air duct together form a limiting portion.

In this embodiment, in the process of assembling the air duct assembly, the noise reduction device may be disposed in a part of the limiting portion configured on the first sub-air duct, and then the second sub-air duct abuts against the first sub-air duct, and the second sub-air duct may be combined with the first sub-air duct to form the limiting portion, and the limiting portion may fix the limiting matching portion of the noise reduction device, so that the installation of the noise reduction device may be completed, and the assembly efficiency of the air duct assembly is improved.

In this embodiment, establish between first sub-wind channel and second sub-wind channel through spacing cooperation portion clamp, the contact area and the angle in increase noise reduction device and wind channel can stabilize fixedly to noise reduction device, avoid noise reduction device to appear rocking, further improve noise reduction efficiency.

In addition, the second sub-air duct is communicated with the first sub-air duct, and the outlet of the fan is connected with the inlet end of the second sub-air duct, so that the air flow enters from the inlet end of the second sub-air duct under the driving of the fan, and flows through the first sub-air duct and flows out from the air outlet after passing through the heat dissipation member, the air flow circulation speed is increased, and the heat dissipation efficiency of the heat dissipation member is improved.

Specifically, the fan is axial fan, owing to through axial fan and the sub-wind channel entrance connection of second, axial fan can lie flat like this and place, has greatly reduced whole space setting, makes overall structure compacter, under the circumstances of guaranteeing overall structure compactness, has guaranteed that the air current gets into from the sub-wind channel entrance of second, the first sub-wind channel of flowing through, and then link up to the other end from heat sink one end, has realized the speed of heat sink, abundant radiating effect.

In addition, because axial fan's opening size is comparatively fixed relatively, consequently communicates first sub-wind channel and axial fan through second sub-wind channel, can effectively guarantee axial fan's installation fixed. And the structural dimension in second sub-wind channel can be adjusted according to actual conditions, has effectively promoted the adaptability and the popularization nature of this embodiment for this scheme can be applied to the cooking machine of different dimensions.

In any of the above embodiments, further, one of the limit stop portion and the limit stop fitting portion includes a convex portion, and the other includes a concave portion.

In this embodiment, a specific structure of the stopper portion and the stopper fitting portion is further provided, one of the stopper portion and the stopper fitting portion includes a convex portion, and the other includes a concave portion. The limiting part comprises a convex part, the limiting matching part comprises a concave part, and the air duct is clamped in the noise reduction device to ensure the stability and fixation of the noise reduction device. The limiting part comprises a concave part, the limiting matching part comprises a convex part, and the noise reduction device is clamped in the air duct and can be stably fixed. The noise reduction device is stable and fixed, and noise generated by shaking of the noise reduction device can be avoided.

In any of the above embodiments, further, the noise reducer is a plastic noise reducer or a metal noise reducer.

In this embodiment, there is further provided a material selection for the noise reducer, the noise reducer being a plastic noise reducer or a metal noise reducer. When the device of making an uproar falls for plastics, can reduce the dead weight of the device of making an uproar of falling, the installation of the device of making an uproar of falling of being convenient for can reduction in production cost simultaneously. When the noise reduction device is a metal noise reduction device, the service life of the noise reduction device can be prolonged, the noise reduction device can be prevented from being oxidized and aged due to the increase of service time, and the maintenance frequency of the air duct assembly can be reduced.

In any of the above embodiments, further, the air duct is provided with an opening, a portion of the heat sink is exposed to the opening, and the portion of the heat sink exposed to the opening is configured to cover the opening.

In this embodiment, a manner of disposing the heat dissipation member is further provided, the heat dissipation member is partially exposed out of the air duct, and the exposed heat dissipation member with the air duct can cover the opening, so that the device to be cooled can be directly connected with (e.g., attached to) the heat dissipation member, thereby shortening the gap between the heat dissipation member and the device to be cooled, facilitating heat transfer, and effectively improving the heat dissipation effect.

It is understood that the portion of the heat sink exposed to the opening is configured to cover the opening, i.e., the portion of the wall surface of the heat sink configured as the passage.

In any of the above embodiments, further, the air duct has an inlet and an outlet, and the portion of the heat sink located in the air duct further includes a leeward end, the windward end is communicated with the inlet, and the leeward end is communicated with the outlet.

In this embodiment, further provided the concrete structure in wind channel, the wind channel has included import and export, and the windward end and the import of radiating piece are linked together, and leeward end is linked together with the export for the air supply in the wind channel can dispel the heat for the radiating piece via windward end flow direction leeward end, makes the air supply preferentially simultaneously and falls the contact of device of making an uproar, greatly reduced noise, improvement user experience.

Simultaneously, this structure setting makes the wind channel can all-roundly blow the heat dissipation for the radiating piece under the state of ventilating. That is, under fan running state, the air current in the wind channel can run through the radiating piece and blow to the realization is to the regional overall coverage of blowing of radiating piece, improves the radiating efficiency.

In addition, at least part of the radiating pieces are arranged in the radiating air duct, the windward ends of the radiating pieces are ensured to be communicated with the inlet of the air duct, and the leeward ends of the radiating pieces are communicated with the outlet of the air duct, so that the air flow can be conveniently communicated from the windward ends of the radiating pieces to the leeward ends, the air flow is communicated and blown, and the radiating efficiency of the radiating pieces is effectively improved.

According to the utility model discloses a second aspect provides a cooking machine, include: the fan is provided with an air outlet; and the air duct assembly of any one of the above embodiments, wherein the air outlet of the fan is communicated with the inlet of the air duct assembly.

The utility model provides a cooking machine includes the wind channel subassembly that any above-mentioned embodiment provided, consequently cooking machine has like the utility model discloses the whole beneficial effect of the wind channel subassembly of any embodiment, no longer describe herein.

The utility model provides a cooking machine has further included the fan, can be for supplying air in the wind channel through setting up of fan, and the wind that reaches passes through the wind channel subassembly can take away the heat on the radiating piece, so can accomplish the heat dissipation, can improve cooking machine's life.

Additionally, the utility model provides an arrange the machine in the above-mentioned embodiment can also have following additional technical characterstic:

in the above embodiment, further, the method further includes: the shell is provided with a working cavity, and the air duct is connected with the shell; the cooling device is arranged on the shell and comprises a cold end and a hot end, the cold end is configured to cool the working cavity, and the heat dissipation piece is configured to dissipate heat of the hot end.

In this embodiment, the cooking machine has further included casing and heat sink, and through the setting of casing, the working chamber of casing can be used for holding the edible material that needs carry out the heat dissipation, and the cold junction of heat sink can cool down for the working chamber in the casing, and then can cool down for the edible material of working intracavity. The heat sink can be used for dissipating heat for the hot end of the cooling device, so that the heat dissipation effect of the cooling device can be improved.

In this embodiment, supply air in to the fan subassembly through the fan, the air supply contacts with the radiating piece, can take away the heat on the radiating piece, can further improve the radiating effect.

It can be understood that the cooling device comprises a cold end and a hot end, namely the cooling device can realize the functions of heat absorption and heat release so as to form the cold end and the hot end; the cold junction is configured to the working chamber cooling, and the heat dissipation piece is configured to the hot junction heat dissipation, and the cold junction is used for cooling for the working chamber, and the hot junction sets up the heat dissipation piece simultaneously and dispels the heat.

Specifically, at cooking machine operation in-process, because food temperature can cause uncontrollable in the working chamber to the heat that cooking machine self produced, adjust the accuse temperature through setting up the heat sink, the heat sink is cooled down through cold end pair working chamber. Simultaneously, release heat through the hot junction, set up the radiating piece at the hot junction and dispel the heat to the hot junction, realized that the work intracavity temperature is controllable, satisfied the user demand, owing to set up the radiating piece simultaneously, realized can dispel the heat fast, the purpose that the radiating efficiency is high.

In particular, the cooling device may comprise a semiconductor cooling plate.

In any of the above embodiments, further, the cold end of the cooling device is attached to the outer wall surface of the working chamber; the hot end of the cooling device is attached to the part of the heat sink exposed out of the opening of the air duct.

In this embodiment, further provide the position that sets up of heat sink, the cold junction of heat sink and the outer wall laminating of working chamber, the cold junction can directly carry out the heat transfer with the working chamber in the casing, can improve the radiating effect for the working chamber. The hot end of the cooling device is attached to the part, exposed out of the opening of the air duct, of the heat dissipation piece, the heat dissipation piece can directly exchange heat with the hot end, the heat dissipation effect of the heat dissipation piece for the cooling device can be improved, the working efficiency of the cooling device can be further improved, and the cooling effect in the working cavity is improved.

In any of the above embodiments, further comprising: the heat insulation part is arranged on the shell and is wrapped in the working cavity, and the heat dissipation part is positioned on the outer side of the heat insulation part.

In this embodiment, further included thermal-insulated portion, thermal-insulated portion cladding in the working chamber can avoid external factors to produce the influence to the temperature in the working chamber. For example, the influence of external air flow on the temperature in the working cavity is avoided, and the influence of the hot end of the cooling device on the temperature in the working cavity is avoided.

It can be understood that heat insulation portion cladding is in the working chamber, and separation working chamber and external heat contact realize that the working intracavity in the temperature of minimality not carries out the heat exchange with the external world like this, are favorable to protecting the local constancy of temperature of working chamber, further play the cooling effect.

Further, the heat sink is located outside the heat insulating portion so that the heat sink is not covered by the heat insulating portion. Therefore, on the basis of ensuring the stable temperature in the working cavity, the heat of the radiating piece is taken away by the air flow in the air duct, the radiating effect of the radiating piece is further ensured, and the radiating effect of the radiating piece on the hot end of the cooling device is especially ensured.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic structural diagram of a first view angle of a food processor according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a second view angle of the food processor according to an embodiment of the present invention;

fig. 3 shows a cross-sectional view of a food processor according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 shows a schematic structural view of a heat sink and a noise reducer according to an embodiment of the present invention;

fig. 6 shows a schematic structural view of a noise reducer according to an embodiment of the present invention;

fig. 7 is a partially enlarged schematic view of a portion B in fig. 6.

Wherein, the correspondence between the reference numbers and the part names of fig. 1 to 7 is:

100 air duct components, 110 air ducts, 112 limiting parts, 114 first air ducts, 116 second air ducts, 118 inlets, 119 outlets, 120 heat dissipation parts, 122 windward ends, 124 leeward ends, 126 turbulence parts, 130 noise reduction devices, 132 frame bodies, 134 noise reduction parts, 136 noise reduction channels, 138 limiting matching parts, 200 food processor, 210 fan, 212 air outlet, 220 shell, 230 working cavity, 240 cooling device, 242 cold ends, 244 hot ends and 250 heat insulation parts.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An air duct assembly 100 and a food processor 200 according to some embodiments of the present invention are described below with reference to fig. 1 to 7.

Example 1:

as shown in fig. 1-7, one embodiment of the present invention provides an air duct assembly 100, comprising: an air duct 110, a heat sink 120, and a noise reducer 130.

As shown in fig. 1 to 3, at least a portion of the heat sink 120 is located in the air duct 110, and a portion of the heat sink 120 located in the air duct 110 includes a windward end 122; the noise reducer 130 is located in the air duct 110, and the noise reducer 130 is disposed at the windward end 122 of the heat sink 120.

The utility model provides an air duct assembly 100 includes air duct 110, heat sink 120 and noise reducer 130. The part of the heat sink 120 located in the air duct 110 includes a windward end 122, and the noise reducer 130 is disposed at the windward end 122 of the heat sink 120 by properly arranging the windward end 122 of the heat sink 120 and the noise reducer 130. Thus, when the airflow in the air duct 110 flows to the heat sink 120, the airflow first contacts the noise reducer 130 at the windward end 122 of the heat sink 120 and then flows to the heat sink 120. Because the air current that gets into wind channel 110 contacts with noise reducer 130 at first, can produce destructive interference to the air current scattering on radiating piece 120 windward end 122 through noise reducer 130, reduce the noise that produces when air current contacts with radiating piece 120, so reduce the aerodynamic noise of air current in radiating piece 120 department, and then can reduce the running noise of the electrical apparatus of installing wind channel subassembly 100, be favorable to promoting the performance and the market competition of product. That is, this arrangement allows the air flow to take away heat from the heat radiating member 120 to achieve heat radiation while greatly reducing noise generated by the air flow contacting the heat radiating member 120.

It will be appreciated that the noise reducer 130 is disposed at the windward end 122 of the heat sink 120, i.e., the noise reducer 130 is connected to the windward end 122 of the heat sink 120, so that the heat sink 120 and the noise reducer 130 can be viewed as a whole. That is, this arrangement makes the aerodynamic noise of the air flow passing through the integrated structure of the noise reducing device 130 and the heat radiating member 120 small while ensuring the performance of the heat radiating member 120 in use.

Specifically, one end of the noise reducer 130 facing the windward end 122 of the heat sink 120 is attached to the windward end 122 of the heat sink 120, so as to reduce the gap between the noise reducer 130 and the windward end 122 of the heat sink 120.

Specifically, when the air duct assembly 100 is used in cooperation with other devices of an electrical appliance, the heat dissipation member 120 may be attached to the device to be dissipated, or the wall surface of the air duct 110 may be located between the heat dissipation member 120 and the device to be dissipated, that is, the heat dissipation member 120 is indirectly engaged with the device to be dissipated, and the heat dissipation member 120 is used for dissipating heat of the device to be dissipated. Thus, the air flow in the air duct 110 contacts the heat dissipation member 120 to carry away the heat on the heat dissipation member 120, so as to dissipate the heat of the heat dissipation member 120.

If, in the operation process of the food processer 200, the food processer 200 generates heat to be transferred to the heat dissipation member 120, and the heat dissipation area of the food processer 200 is increased by the heat dissipation member 120, so that the heat is lost through the heat dissipation member 120.

In other embodiments, heat sink 120 includes: a heat dissipating block; and the heat dissipation channel penetrates through the heat dissipation block and is communicated with the air duct 110. The heat sink 120 includes a heat dissipation block and a heat dissipation channel. Wherein, a heat dissipation channel is disposed to penetrate the heat dissipation block, that is, two ends of the heat dissipation channel are communicated with the air duct 110. In this way, the fan 210 directly blows the air flow into the heat dissipation channel through the air duct 110 during the operation process, and further penetrates through the heat dissipation block through the heat dissipation channel, so that the heat of the heat dissipation block is sent out of the air duct 110 along with the air flow, and the heat dissipation effect is achieved. In addition, because the heat dissipation channel is arranged to penetrate through the heat dissipation block, the air flow blown by the fan 210 is not blocked in the flowing process, the smooth air flow is ensured, the air flow flowing speed is increased, and the heat dissipation efficiency is improved.

Example 2:

as shown in fig. 1-7, one embodiment of the present invention provides an air duct assembly 100, comprising: an air duct 110, a heat sink 120, and a noise reducer 130.

As shown in fig. 1 to 3, at least a portion of the heat sink 120 is located in the air duct 110, and a portion of the heat sink 120 located in the air duct 110 includes a windward end 122; the noise reducer 130 is located in the air duct 110, and the noise reducer 130 is disposed at the windward end 122 of the heat sink 120.

As shown in fig. 5, further, the noise reducer 130 covers the windward end 122 of the heat sink 120.

In this embodiment, the noise reducer 130 is further provided, and the noise reducer 130 covers the windward end 122 of the heat sink 120, and this arrangement increases the contact area between the noise reducer 130 and the windward end 122 of the heat sink 120, so that when the airflow is delivered to the heat sink 120 through the air duct 110, the airflow first contacts the noise reducer 130, but does not directly contact the windward end 122. Thus, noise generated due to the contact of the air flow with the heat sink 120 can be greatly reduced.

Example 3:

as shown in fig. 5 to fig. 7, on the basis of any of the above embodiments, further, the noise reduction device 130 includes: a frame 132; the noise reduction pieces 134 are arranged on the frame body 132, the noise reduction pieces 134 are arranged at intervals, a noise reduction channel 136 is formed between any two adjacent noise reduction pieces 134, and the noise reduction channel 136 is communicated with the heat dissipation member 120.

In this embodiment, as shown in fig. 6, a specific structure of the noise reducer 130 is further provided, and the noise reducer 130 includes a frame or a plurality of noise reducers 134, and the plurality of noise reducers 134 are spaced apart so that a noise reduction channel 136 is formed between two adjacent noise reducers 134. Since the noise reduction passage 136 is communicated with the heat sink 120, smoothness of the airflow path can be ensured to ensure that the airflow can effectively contact the heat sink 120 to ensure the heat dissipation effect of the heat sink 120.

In addition, the noise reduction element 134 can generate destructive interference on the scattering of the airflow at the windward end 122 of the heat dissipation element 120, and reduce the noise generated when the airflow contacts the heat dissipation element 120, thereby reducing the aerodynamic noise of the airflow at the heat dissipation element 120. That is, the noise is reduced while the effectiveness of the airflow and the heat dissipation effect are ensured.

Example 4:

on the basis of any of the above embodiments, further, the heat sink 120 includes: a plurality of fins arranged at intervals; wherein, the distribution direction of the plurality of fins is the same as the distribution direction of the plurality of noise reducers 134.

In this embodiment, a structure of the heat dissipation member 120 is further provided, and the heat dissipation member 120 includes a plurality of fins, and the plurality of fins are distributed at intervals, so that the air flow is in contact with the fins after being subjected to noise reduction by the noise reduction device 130, and then the air flow can be discharged from the heat dissipation member 120 through gaps between the plurality of fins, thereby facilitating the circulation of the air flow and improving the heat dissipation efficiency.

In this embodiment, the distribution direction of the plurality of fins is the same as the distribution direction of the plurality of noise reduction members 134, so that the smoothness and stability of the airflow path can be ensured, the wind resistance can be reduced, the deflection of the airflow is reduced, the flow loss of the airflow is reduced, more energy is converted into dynamic pressure, and the air volume is further increased; furthermore, the arrangement can reduce the frequency of phenomena of airflow flow separation, vortex and the like, and is beneficial to reducing aerodynamic noise.

In particular, the fins may be made of aluminum.

Example 5:

as shown in fig. 6 and 7, on the basis of any of the above embodiments, further, one end of the noise reduction element 134 facing away from the heat sink 120 is provided with a spoiler 126; the spoiler 126 may include any one or combination of the following: corrugated structure, sawtooth structure, square tooth structure, protruding structure, groove structure.

In this embodiment, one end of the noise reduction element 134 facing away from the heat dissipation element 120 is provided with a spoiler 126, so that the airflow delivered through the air duct 110 preferentially contacts the spoiler 126, and destructive interference can be generated on the scattering pressure on the windward end 122 of the heat dissipation element 120, thereby reducing noise.

In this embodiment, a structure of the spoiler 126 is further provided, where the spoiler 126 includes a corrugated structure, a sawtooth structure, one or a combination of a square tooth structure, a raised structure and a groove structure, and the corrugated structure, the sawtooth structure, the square tooth structure, the raised structure and the groove structure can all play a role in destructive interference of scattering pressure on the windward end 122 of the heat sink 120, and can play a role in noise reduction.

In addition, this arrangement can effectively disturb the incoming airflow. When the turbulence portions 126 with the same structure are selected for turbulence, the processing difficulty of the turbulence portions 126 can be reduced, and thus the processing cost of the product is reduced. When the turbulence parts 126 with different structures are selected for combination turbulence, the turbulence effect can be further improved to meet the higher noise reduction requirement, and a user can flexibly set the specific structure of the turbulence parts 126 according to the use scene of a product.

In particular, the end of the noise reducer 134 facing the heat sink 120 is adapted to the structure of the windward end 122 of the heat sink 120. If the windward end 122 of the heat sink 120 is a plane, the end of the noise reduction element 134 facing the heat sink 120 is also a plane; the windward end 122 of the heat sink 120 is curved, and the end of the noise reduction element 134 facing the heat sink 120 is also curved.

Example 6:

as shown in fig. 3 and 4, on the basis of any of the above embodiments, further, the wall surface of the air duct 110 is provided with a limiting portion 112, the noise reduction device 130 is provided with a limiting engaging portion 138, and the limiting portion 112 is engaged with the limiting engaging portion 138, so that the noise reduction device 130 is assembled with the air duct 110.

In this embodiment, the wall surface of the air duct 110 is further provided with a limiting portion 112, the noise reduction device 130 is provided with a limiting matching portion 138, and the noise reduction device 130 can be conveniently mounted and fixed by combining the limiting portion 112 and the limiting matching portion 138, so that the noise reduction device 130 can be prevented from shaking, and further, the noise generated due to the shaking of the noise reduction device 130 is avoided.

Specifically, the limiting portion 112 is matched with the limiting matching portion 138, so that the noise reduction device 130 and the air duct 110 can be conveniently mounted and dismounted, and the assembly efficiency can be improved. That is, the position-limiting portion 112 is connected to the position-limiting matching portion 138 to realize the connection between the air duct 110 and the noise reducer 130.

As shown in fig. 3, specifically, the air duct 110, the noise reducer 130, and the heat sink 120 are assembled together.

Example 7:

as shown in fig. 3 and 4, on the basis of the above embodiment 6, further, the air duct 110 includes: a first sub-air duct 114, at least a part of the heat dissipating member 120 being located in the first sub-air duct 114, the first sub-air duct 114 forming a part of the limiting portion 112; a second sub-air duct 116 connected to the first sub-air duct 114, the second sub-air duct 116 forming another part of the limiting portion 112; the limit fitting portion 138 is interposed between the first sub-air duct 114 and the second sub-air duct 116.

In this embodiment, a specific structure of the air duct 110 is further provided, the air duct 110 includes a first sub-air duct 114 and a second sub-air duct 116, and the first sub-air duct 114 and the second sub-air duct 116 together form the limiting portion 112.

In this embodiment, in the assembling process of the air duct assembly 100, the noise reduction device 130 may be disposed in a portion of the limiting portion 112 configured on the first sub-air duct 114, then the second sub-air duct 116 abuts against the first sub-air duct 114, the second sub-air duct 116 and the first sub-air duct 114 may be combined to form the limiting portion 112, and the limiting portion 112 may fix the limiting matching portion 138 of the noise reduction device 130, so that the installation of the noise reduction device 130 may be completed, and the assembling efficiency of the air duct assembly 100 is improved.

In this embodiment, the limiting matching portion 138 is clamped between the first sub-air duct 114 and the second sub-air duct 116, so as to increase the contact area and the angle between the noise reduction device 130 and the air duct 110, and to fix the noise reduction device 130 stably, thereby preventing the noise reduction device 130 from shaking and further improving the noise reduction efficiency.

In addition, the second sub-air duct 116 is communicated with the first sub-air duct 114, and the outlet 119 of the fan 210 is connected to the inlet 118 of the second sub-air duct 116, so that the air flow enters from the inlet 118 of the second sub-air duct 116 under the driving of the fan 210, passes through the heat dissipation member 120 through the first sub-air duct 114 and then flows out from the air outlet 212, the air flow circulation speed is increased, and the heat dissipation efficiency of the heat dissipation member 120 is improved.

Specifically, fan 210 is axial fan, owing to be connected through axial fan 210 and second sub-wind channel 116 import 118 end, axial fan 210 can lie flat like this and place, has greatly reduced the overall space setting, makes overall structure compacter, under the circumstances of guaranteeing overall structure compactness, has guaranteed that the air current gets into from second sub-wind channel 116 import 118 end, first sub-wind channel 114 of flowing through, and then link up to the other end from radiating piece 120 one end, the speed of radiating piece 120 has been realized, abundant radiating effect.

In addition, since the opening size of the axial flow fan 210 is relatively fixed, the first sub-air duct 114 and the axial flow fan are communicated through the second sub-air duct 116, and the installation and fixation of the axial flow fan can be effectively ensured. And the structural dimension of second sub-wind channel 116 can be adjusted according to actual conditions, has effectively promoted the adaptability and the popularization nature of this embodiment for this scheme can be applied to the cooking machine 200 of different dimensions.

Example 8:

as shown in fig. 3 and 4, on the basis of the above embodiment 6 or 7, further, one of the limit stop portion 112 and the limit stop fitting portion 138 includes a convex portion, and the other includes a concave portion.

In this embodiment, a specific structure of the position restricting portion 112 and the position restricting fitting portion 138 is further provided, and one of the position restricting portion 112 and the position restricting fitting portion 138 includes a convex portion and the other includes a concave portion. Under the condition that the limiting part 112 comprises a convex part and the limiting matching part 138 comprises a concave part, the air duct 110 is clamped in the noise reduction device 130, and the noise reduction device 130 can be stably fixed. In the case that the position-limiting portion 112 includes a concave portion and the position-limiting matching portion 138 includes a convex portion, the noise reducer 130 is clamped in the air duct 110, and the noise reducer 130 can be stably fixed. The noise reducer 130 is firmly fixed, so that noise caused by shaking of the noise reducer 130 can be avoided.

Example 9:

in addition to any of the above embodiments, the noise reducer 130 is a plastic noise reducer or a metal noise reducer.

In this embodiment, further material selection for the noise reducer 130 is provided, and the noise reducer 130 is a plastic noise reducer or a metal noise reducer. When the noise reducer 130 is a plastic noise reducer, the dead weight of the noise reducer 130 can be reduced, the noise reducer 130 can be conveniently mounted, and meanwhile, the production cost can be reduced. When the noise reducer 130 is a metal noise reducer, the service life of the noise reducer 130 can be prolonged, oxidation and aging of the noise reducer 130 due to the increase of the service time can be avoided, and the maintenance frequency of the air duct assembly 100 can be reduced.

Example 10:

as shown in fig. 2 and 3, on the basis of any of the above embodiments, further, the air duct 110 is provided with an opening, a portion of the heat dissipation member 120 is exposed to the opening, and the portion of the heat dissipation member 120 exposed to the opening is configured to cover the opening.

In this embodiment, a manner of disposing the heat dissipation member 120 is further provided, the heat dissipation member 120 is partially exposed out of the air duct 110, and the heat dissipation member 120 exposed out of the air duct 110 can cover the opening, so that the device to be cooled can be directly connected (e.g., attached) to the heat dissipation member 120, thereby shortening a gap between the heat dissipation member 120 and the device to be cooled, facilitating heat transfer, and effectively improving a heat dissipation effect.

It is understood that a portion of the heat sink 120 exposed to the opening is configured to cover the opening, i.e., a portion of a wall surface of the heat sink 120 configured as a passage.

Example 11:

as shown in fig. 3 and 4, based on any of the above embodiments, further, the air duct 110 has an inlet 118 and an outlet 119, and the portion of the heat sink 120 located in the air duct 110 further includes a leeward end 124, the windward end 122 is communicated with the inlet 118, and the leeward end 124 is communicated with the outlet 119.

In this embodiment, a specific structure of the air duct 110 is further provided, the air duct 110 includes an inlet 118 and an outlet 119, the windward end 122 of the heat dissipation member 120 is communicated with the inlet 118, and the leeward end 124 is communicated with the outlet 119, so that the air supply in the air duct 110 can flow to the leeward end 124 via the windward end 122 to dissipate heat for the heat dissipation member 120, and meanwhile, the air supply is preferentially contacted with the noise reduction device 130, thereby greatly reducing noise and improving user experience.

Meanwhile, the structure arrangement enables the air duct 110 to blow and dissipate heat for the heat dissipation member 120 in all directions in a ventilation state. That is, in the operating state of the fan 210, the air flow in the air duct 110 can blow through the heat dissipation member 120, so that the blowing area of the heat dissipation member 120 is covered comprehensively, and the heat dissipation efficiency is improved.

In addition, at least part of the heat dissipation member 120 is disposed in the heat dissipation air duct 110, and the windward end 122 of the heat dissipation member 120 is ensured to be connected to the inlet 118 of the air duct 110 in a penetrating manner, and the leeward end 124 of the heat dissipation member 120 is connected to the outlet 119 of the air duct 110 in a penetrating manner, so that the air flow can be conveniently led from the windward end 122 of the heat dissipation member 120 to the leeward end 124, the air flow can be blown in a penetrating manner, and the heat dissipation efficiency of the heat dissipation member 120 can be effectively improved.

Example 12:

as shown in fig. 1 and 2, an embodiment of the present invention provides a food processor 200, including: a fan 210 and the air duct assembly 100 of any of the embodiments described above;

wherein, the fan 210 is provided with an air outlet 212; the air outlet 212 of the fan 210 is in communication with the inlet 118 of the air duct assembly 100.

The utility model provides a cooking machine 200 includes the wind channel subassembly 100 that any above-mentioned embodiment provided, consequently cooking machine 200 has like the utility model discloses the whole beneficial effect of the wind channel subassembly 100 of any embodiment, no longer describe herein.

The utility model provides a cooking machine 200 has further included fan 210, can be for supplying air in wind channel 110 through setting up of fan 210, and the wind that reaches passes through wind channel subassembly 100 can take away the heat on the radiating part 120, so can accomplish the heat dissipation, can improve cooking machine 200's life.

Specifically, the fan 210 is located at the inlet 118 of the air chute 110 and the heat sink 120 is located at the outlet 119 of the air chute 110. The fan 210 is located at the inlet 118 of the air duct 110, provides power drive for airflow, and ensures the stability of airflow circulation, and the heat dissipation member 120 is located at the outlet 119 of the air duct 110, so as to realize the penetration of the airflow from the air inlet to the air outlet 212. Specifically, the fan 210 is positioned at the inlet 118 to facilitate the airflow to enter the air duct 110 completely without intermediate loss, thereby increasing the speed of the airflow in the air duct 110. The heat dissipation member 120 is located at the outlet 119, which is beneficial for the airflow with heat to flow out from the outlet 119, and not to stay in the air duct 110 for a long time, so as to reduce the heat dissipation efficiency of the heat dissipation member 120, further increase the speed of the airflow entering from the inlet 118 and blowing out from the outlet 119, and improve the heat dissipation efficiency of the heat dissipation member 120.

In some other embodiments, the air duct comprises: the heat radiating piece is arranged in the first sub-air duct, and the fan is connected with the first sub-air duct; wherein the fan is a cross-flow fan. The heat dissipation air duct comprises a first sub-air duct. The first sub-air duct is connected with the fan, so that the connection of the middle air duct is avoided, and the on-way resistance caused by the connection of the middle air duct is reduced. The heat dissipation piece is arranged in the first sub-air channel, so that the air flow enters from the inlet and flows out from the outlet, the air flow is communicated from the windward end to the leeward end of the heat dissipation piece, and a good heat dissipation effect is achieved. For example, the fan is a cross-flow fan, and because the air outlet of the cross-flow fan is uniform, the air flow can uniformly flow through the radiating fins, the condition that the radiating area of the radiating piece is not fully utilized due to the non-uniform air flow is avoided, and the radiating efficiency of the radiating piece is ensured. And because the first sub-air duct is directly connected with the cross-flow fan, the pressure loss is small, the cross-flow fan can operate at a lower rotating speed, and the noise of the heat dissipation air duct is effectively reduced.

Specifically, because the air outlet 212 of the fan 210 can be set to be the same as the width of the heat sink 120, the connection of the air duct 110 between the fan 210 and the heat sink 120 is avoided, vortex formation caused by flaring of the air duct 110 is reduced, airflow with heat is retained in the air duct 110, the heat dissipation effect is affected, the pressure loss is further reduced, the airflow circulation speed is increased, and the heat dissipation efficiency of the heat sink 120 is ensured.

Specifically, the food processor 200 further comprises an ultrasonic generator at least partially located within the working chamber 230. The food processor 200 further comprises an ultrasonic generator. Wherein, the ultrasonic generator is at least partially located in the working chamber 230, and the ultrasonic generator is arranged in the working chamber 230, which can rapidly release the nutrition and flavor substances in the extract, thereby shortening the brewing time. Specifically, the ultrasonic generator generates high-frequency vibration by an inverse piezoelectric effect during operation. The high-frequency vibration is amplified by an amplitude transformer of the ultrasonic generator to generate a cavitation effect in water. When the cavitation effect acts on tea, coffee powder and other drinks, the nutrition and flavor substances in the extract can be released quickly. On the basis of ensuring the extraction of nutrient substances, the brewing time of the beverage is shortened.

Example 13:

as shown in fig. 1 and 2, an embodiment of the present invention provides a food processor 200, including: a fan 210 and the air duct assembly 100 of any of the embodiments described above;

wherein the fan 210 is provided with an air outlet 212; the air outlet 212 of the fan 210 is in communication with the inlet 118 of the air duct assembly 100.

As shown in fig. 3, further, the method further includes: a housing 220 provided with a working chamber 230, and the air duct 110 connected to the housing 220; and a temperature reduction device 240 disposed in housing 220, wherein temperature reduction device 240 includes a cold end 242 and a hot end 244, cold end 242 is configured to reduce the temperature of working chamber 230, and heat sink 120 is configured to dissipate heat from hot end 244.

In this embodiment, the food processer 200 further includes the casing 220 and the heat sink 240, and through the setting of the casing 220, the working chamber 230 of the casing 220 can be used for holding the edible material that needs to radiate, and the cold end 242 of the heat sink 240 can cool down for the working chamber 230 in the casing 220, and then can cool down for the edible material in the working chamber 230. Dissipating heat for hot end 244 of temperature reduction device 240 through heat sink 120 can improve the heat dissipation effect of temperature reduction device 240.

In this embodiment, the fan 210 supplies air into the fan 210 assembly, and the air supply contacts the heat dissipation member 120, so that heat on the heat dissipation member 120 can be taken away, and the heat dissipation effect can be further improved.

It is understood that the temperature reduction device 240 includes a cold end 242 and a hot end 244, that is, the temperature reduction device 240 is capable of performing heat absorption and heat release functions, thereby forming the cold end 242 and the hot end 244; cold end 242 is configured to cool working chamber 230, heat sink 120 is configured to dissipate heat from hot end 244, cold end 242 is used to cool working chamber 230, while hot end 244 provides heat sink 120 for dissipating heat.

Specifically, at cooking machine 200 operation in-process, because cooking machine 200 self produced heat can lead to the fact uncontrollable to food temperature in working chamber 230, adjust the accuse temperature through setting up heat sink 240, heat sink 240 cools down working chamber 230 through cold junction 242. Meanwhile, heat is released through the hot end 244, the heat sink 120 is arranged on the hot end 244 to dissipate heat of the hot end 244, temperature in the working cavity 230 is controllable, the use requirement is met, and meanwhile, due to the fact that the heat sink 120 is arranged, the purposes of rapid heat dissipation and high heat dissipation efficiency are achieved.

Specifically, the cooling device 240 may include a semiconductor cooling fin.

Further, as shown in FIG. 3, the cold end 242 of the cooling device 240 is attached to the outer wall of the working chamber 230; the hot end 244 of the cooling device 240 is attached to the portion of the heat sink 120 exposed to the opening of the air duct 110.

In this embodiment, further provide the position that sets up of heat sink 240, the outer wall laminating of cold junction 242 and working chamber 230 of heat sink 240, cold junction 242 can directly carry out the heat transfer with working chamber 230 in the casing 220, can improve the radiating effect for working chamber 230. The hot end 244 of the cooling device 240 is attached to the part of the heat sink 120 exposed out of the opening of the air duct 110, and the heat sink 120 can directly exchange heat with the hot end 244, so that the heat dissipation effect of the heat sink 120 as the cooling device 240 can be improved, the working efficiency of the cooling device 240 can be improved, and the cooling effect in the working cavity 230 can be improved.

Example 14:

as shown in fig. 1 and fig. 3, on the basis of embodiment 12 or embodiment 14, further, the method further includes: the heat insulation part 250 is disposed in the housing 220, the working chamber 230 is covered by the heat insulation part 250, and the heat sink 120 is located outside the heat insulation part 250.

In this embodiment, a heat insulation portion 250 is further included, and the heat insulation portion 250 covers the working chamber 230, so as to prevent external factors from affecting the temperature inside the working chamber 230. For example, to avoid the influence of the external air flow on the temperature in the working chamber 230, and to avoid the influence of the hot end 244 of the temperature reduction device 240 on the temperature in the working chamber 230.

It can be understood that the heat insulation part 250 is wrapped in the working cavity 230, so that the working cavity 230 is prevented from contacting with external heat, heat exchange between the temperature in the working cavity 230 in a small range and the outside is avoided, the local temperature of the working cavity 230 is protected to be constant, and the cooling effect is further achieved.

Further, the heat sink 120 is located outside the heat insulating part 250 so that the heat sink 120 is not covered by the heat insulating part 250. Thus, on the basis of ensuring the stable temperature inside the working chamber 230, the heat of the heat sink 120 is taken away by the airflow in the air duct 110, so as to further ensure the heat dissipation effect of the heat sink 120, and particularly ensure the heat dissipation effect of the heat sink 120 on the hot end 244 of the cooling device.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 1 to 7, the food processor 200 includes a cooling device 240 (e.g., the cooling device 240 includes a semiconductor cooling plate), a heat sink 120 (e.g., a heat dissipating fin), an air duct 110, a fan 210, the heat sink 120, and a noise reduction device 130 in the air duct 110. The semiconductor chilling plate generates heat absorption and release phenomena, and a cold end 242 and a hot end 244 are formed on two sides of the semiconductor chilling plate. The cold end 242 of the semiconductor cooling fins is attached to the walls of the working chamber 230 for transferring cooling and the hot end 244 is attached to the cooling fins. One end of the heat dissipation fin is connected to the air outlet 212 of the fan 210 through the noise reducer 130 and the air duct 110.

Objects needing refrigeration are stored in the working chamber 230, and the cold end 242 of the semiconductor refrigeration piece is attached to the wall of the working chamber 230, so that the cold energy on the semiconductor refrigeration piece can be transmitted to the working chamber 230 and further transmitted to the objects needing refrigeration. The hot end 244 of the semiconductor refrigeration sheet is attached to the heat dissipation member 120, the air duct 110 is wrapped on the outer side of part of the heat dissipation member 120, and one end of the air duct 110 is connected with the air outlet 212 of the fan 210. The noise reducer 130 is interposed between the air duct 110. The noise reducer 130 is generally a flat structure with one side having a wave shape. The flat surface is attached to the heat sink 120, and the wavy surface faces the wind, so that the airflow is blown from the outlet of the fan 210 to the noise reduction device 130. The semiconductor refrigerating sheet has high correlation between the refrigerating performance and the heat dissipation performance.

The wavy noise reducer 130 machined at the windward end 122 of the heat sink 120 can destructively interfere with the scattering pressure when the airflow is blown from the air outlet 212 of the fan 210 to the noise reducer 130, thereby reducing the aerodynamic noise.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (15)

1. An air duct assembly, comprising:

an air duct;

at least part of the radiating piece is positioned in the air duct, and the part of the radiating piece positioned in the air duct comprises a windward end;

and the noise reduction device is positioned in the air duct and is arranged at the windward end of the heat dissipation piece.

2. The air duct assembly of claim 1,

the noise reduction device covers the windward end of the heat dissipation piece.

3. The air duct assembly of claim 1 or 2, wherein the noise reducing device comprises:

a frame body;

the noise reduction parts are arranged on the frame body and are arranged at intervals, a noise reduction channel is formed between any two adjacent noise reduction parts, and the noise reduction channel is communicated with the radiating part.

4. The air duct assembly of claim 3, wherein the heat sink comprises:

a plurality of fins arranged at intervals;

wherein, the distribution direction of the plurality of fins is the same as the distribution direction of the plurality of noise reduction pieces.

5. The air duct assembly of claim 3,

one end of the noise reduction piece, which is far away from the heat dissipation piece, is provided with a flow disturbing part;

the spoiler comprises any one or combination of the following components: corrugated structure, sawtooth structure, square tooth structure, protruding structure, groove structure.

6. The air duct assembly of claim 1 or 2,

the wall of the air duct is provided with a limiting part, the noise reduction device is provided with a limiting matching part, and the limiting part is matched and connected with the limiting matching part, so that the noise reduction device is assembled with the air duct.

7. The air duct assembly of claim 6, wherein the air duct comprises:

at least part of the heat dissipation part is positioned in the first sub-air duct, and the first sub-air duct forms a part of the limiting part;

the second sub-air duct is connected with the first sub-air duct, and the second sub-air duct forms the other part of the limiting part;

the limiting matching part is clamped between the first sub-air duct and the second sub-air duct.

8. The air duct assembly of claim 6,

one of the limit part and the limit fitting part comprises a convex part, and the other one comprises a concave part.

9. The air duct assembly of claim 1 or 2,

the noise reduction device is a plastic noise reduction device or a metal noise reduction device.

10. The air duct assembly of claim 1 or 2,

the air duct is provided with an opening, a part of the heat dissipation member is exposed out of the opening, and the part of the heat dissipation member exposed out of the opening is configured to cover the opening.

11. The air duct assembly of claim 1 or 2,

the air duct is provided with an inlet and an outlet, the part of the radiating piece, which is positioned in the air duct, further comprises a leeward end, the windward end is communicated with the inlet, and the leeward end is communicated with the outlet.

12. A food processor, comprising:

the fan is provided with an air outlet; and

the air duct assembly of any one of claims 1 to 11, wherein the air outlet of the fan is in communication with the inlet of the air duct assembly.

13. The food processor of claim 12, further comprising:

the shell is provided with a working cavity, and the air duct is connected with the shell;

the cooling device is arranged on the shell and comprises a cold end and a hot end, the cold end is configured to cool the working cavity, and the heat dissipation piece is configured to dissipate heat of the hot end.

14. The food processor of claim 13,

the cold end of the cooling device is attached to the outer wall surface of the working cavity;

and the hot end of the cooling device is attached to the part of the heat dissipation piece exposed out of the opening of the air duct.

15. The food processor of claim 13 or 14, further comprising:

the heat insulation part is arranged on the shell and is wrapped in the working cavity, and the heat dissipation piece is located on the outer side of the heat insulation part.

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